J/ApJ/566/974ivo://CDS.VizieR/J/ApJ/566/974doi:10.26093/cds/vizier.15660974CDSTsujimoto M.Koyama K.Tsuboi Y.Goto M.Kobayashi N.2017-12-07T07:27:08Z2006-12-31T07:37:55ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frx-ray-sourcespre-main-sequence-starsinfrared-photometryWe report X-ray results of the Chandra observation of OMC-2 and OMC-3. A deep exposure of ~100ks detects ~400 X-ray sources in the field of view of the ACIS array, providing one of the largest X-ray catalogs in a star-forming region. Coherent studies of the source detection, time variability, and energy spectra are performed. We classify the X-ray sources into Class I, Class II, and Class III+MS based on the J-, H-, and K-band colors of their near-infrared counterparts and discuss the X-ray properties (temperature, absorption, and time variability) along these evolutionary phases.2002ApJ...566..974Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/566/974CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/567/423 : CHANDRA obs. of YSOs in Monoceros R2 (Kohno+, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/566/974https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/566/974http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/566/974https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/566/974https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/566/974http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/566/974GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/566/974/table1 (Results of Imaging Analysis and NIR Identification)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/566/974/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/566/974/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/566/974/table1?GETtext/xml+votable180.050000true83.6608333-5.14522220.005555555555555556Chandra6/21439 22805https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/566/974?format=asciiX-rayInfrareddefaultJ/ApJ/566/974/table1Results of Imaging Analysis and NIR IdentificationrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_[TKT2002]Simbad column added by the CDSmeta.ref.urlchar[TKT2002]Object source identification (1)meta.id;meta.maincharprimaryNameObject name (hhmmss.ss-ddmmss.s) (2)meta.idcharXCtsX-ray photon counts in 0.5-8.0keV bandctphot.count;em.X-rayintHRHardness ratio (3)phot.flux;arith.ratiofloatJ-H? The (J-H) color (4)magphot.color;em.IR.J;em.IR.HfloatnullableH-K? The (H-K) color (4)magphot.color;em.IR.H;em.IR.Kfloatnullable_RAPosition (derived from Name) (right ascension part)degpos.eq.ra;meta.main_DEPosition (derived from Name) (declination part)degpos.eq.dec;meta.mainJ/ApJ/566/974/table2Results of Timing and Spectroscopic AnalysisrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[TKT2002]Object source identification (1)meta.id;meta.maincharf_[TKT2002][d] Indicates source with time-variabilitymeta.codecharUProbUpper probability (2)stat.fit.goodnessfloatNHColumn density1e+22cm**-2phys.columnDensityfloate_NHLower 1{sigma} confidence level to NH1e+22cm**-2stat.error;phys.columnDensityfloatE_NHUpper 1{sigma} confidence level to NH1e+22cm**-2stat.error;stat.maxfloatTempTemperature (3)keVphys.temperaturefloate_TempLower 1{sigma} confidence level to TempkeVstat.errorfloatE_TempUpper 1{sigma} confidence level to TempkeVstat.error;stat.maxfloatZMetallicity relative to solar photospheric from Morrison & McCammon, 1983ApJ...270..119M (3)log(Sun)phys.abund.Z;arith.ratiofloate_ZLower 1{sigma} confidence level to Zlog(Sun)stat.error;src.redshiftfloatE_ZUpper 1{sigma} confidence level to Zlog(Sun)stat.error;stat.maxfloatXLumX-ray luminosity in units of 10+29erg/s (4)1e+22Wphys.luminosity;em.X-rayfloate_XLumLower 1{sigma} confidence level to XLum1e+22Wstat.errorfloatE_XLumUpper 1{sigma} confidence level to XLum1e+22Wstat.error;stat.maxfloatClassClassification based on J, H, K_s_ magnitude of 2MASS counterpart (G1)src.classcharJ/ApJ/566/974/table3Best-fit Values of Two-Temperature Thin-Thermal Plasma ModelrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[TKT2002]Object source identification (1)meta.id;meta.maincharNHColumn density1e+22cm**-2phys.columnDensityfloate_NHLower 1{sigma} confidence level to NH1e+22cm**-2stat.error;phys.columnDensityfloatE_NHUpper 1{sigma} confidence level to NH1e+22cm**-2stat.error;stat.maxfloatTempLLower temperature component value (2)keVphys.temperaturefloate_TempLLower 1{sigma} confidence level to TempLkeVstat.errorfloatE_TempLUpper 1{sigma} confidence level to TempLkeVstat.error;stat.maxfloatTempHHigher temperature component value (2)keVphys.temperaturefloate_TempHLower 1{sigma} confidence level to TempHkeVstat.errorfloatE_TempHUpper 1{sigma} confidence level to TempHkeVstat.error;stat.maxfloatZMetallicity relative to solar photospheric of Morrison & McCammon, 1983ApJ...270..119M (2)log(Sun)phys.abund.Z;arith.ratiofloate_ZLower 1{sigma} confidence level to Zlog(Sun)stat.error;src.redshiftfloatE_ZUpper 1{sigma} confidence level to Zlog(Sun)stat.error;stat.maxfloatXLumLLower component X-ray luminosity in units of 10+29erg/s (3)1e+22Wphys.luminosity;em.X-rayfloate_XLumLLower 1{sigma} confidence level to XLumL1e+22Wstat.errorfloatE_XLumLUpper 1{sigma} confidence level to XLumL1e+22Wstat.error;stat.maxfloatXLumHHigher component X-ray luminosity in units of 10+29erg/s (3)1e+22Wphys.luminosity;em.X-rayfloate_XLumHLower 1{sigma} confidence level to XLumH1e+22Wstat.errorfloatE_XLumHUpper 1{sigma} confidence level to XLumH1e+22Wstat.error;stat.maxfloatClassClassification based on J, H, K_s_ magnitude of 2MASS counterpart (G1)src.classchar